| 鄂尔多斯盆地西缘下古生界地层分析 |
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| 引用本文： | 段杰,张哨楠,丁晓琪,向雷,黄擎宇.鄂尔多斯盆地西缘下古生界地层分析[J].四川地质学报,2008,28(4):272-275. |
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| 作者姓名： | 段杰 张哨楠 丁晓琪 向雷 黄擎宇 |
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| 作者单位： | 成都理工大学,油气藏地质及开发工程国家重点实验室,成都,610059 |
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| 摘 要： | 通过大量薄片、孔渗测定的分析认为鄂尔多斯西缘下古生界地层具有以下特征：下奥陶统桌子山组中下部存在大量的晶间孔，储层物性最好，如果有裂缝沟通，具有极高的储集能力；平凉组在部分地区为一套深水重力流沉积，原生孔隙和次生孔隙相当发育，具有较好储集能力。但总体来说岩石中孔隙欠发育，大多数地层薄片中无可见孔。
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| 关 键 词： | 下古生界 孔隙 储集能力 鄂尔多斯盆地西缘 |
The Lower Paleozoic Group in the Western Margin of the Ordos Basin |
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| DUAN Jie,ZHANG Shao-nan,DING Xiao-qi,XIANG Lei,HUANG Qing-yu.The Lower Paleozoic Group in the Western Margin of the Ordos Basin[J].Acta Geologica Sichuan,2008,28(4):272-275. |
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| Authors: | DUAN Jie ZHANG Shao-nan DING Xiao-qi XIANG Lei HUANG Qing-yu |
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| Institution: | (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059) |
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| Abstract: | Observation of rock thin section and porosity and permeability determination of the Lower Paleozoic Group in the western margin of the Ordos basin indicate that the lower part of the Lower Ordovician Zhuozishan Formation is of best reservoir properties with intercrystalline pores and some parts of the Pingliang Formation is a set of gravity flow deposit characterized by high primary porosity and secondary porosity which results in better reservoir capacity. However, in general, porosity was poorly developed. |
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| Keywords: | Lower Paleozoic Group porosity reservoir capacity western margin of the Ordos basin |
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